In the structure of each ring of deep groove ball bearings have a cross-section of approximately equatorial circumference of the ball one-third of the continuous groove type raceway. Deep groove ball bearings are mainly used to bear radial load, but also bear certain axial load.

When the bearing radial clearance increases, with the nature of angular contact ball bearings can withstand both directions alternating axial load. Compared with other types of bearing the same size, kind of bearing friction coefficient is small, extreme high speed, high precision, when a user selection of the preferred bearing type. Deep groove ball bearing structure is simple, easy to use, is the largest production volume, most widely used of a class of bearings.